For starters, neutering your pets can immediately lower their aggressive nature and behaviour. These pets are relatively calmer and do not feel the need to mark their territory in any way. Moreover, they are unlikely to get in a fight with other pets, bite, or attack other people or animals.
Spaying helps the pets to be freed from their heat cycle and its related behavioural changes. Some unwanted behaviour noticed in pets includes aggressive behaviour, unnecessary howling, urinating without warning and attracting animals of the opposite sex.
As an added benefit, spaying and neutering help to prevent the risk of pyometra, mammary cancer, and ovarian or uterine cancer. In male pets, it helps to prevent testicular cancer as well. You can rest assured of avoiding the accidental pregnancies of your pets.